THS_ 13 "T LA N S! N C NidCLHC A N - T561323 for the. Degree of B‘ S. R C!" 7233' E. R T H . "-4797 A 1‘1" 3929 11;: 5513 DEPT. OF E. E. M; S. C, , EAST LANE-I'M; JUN '1 3 1329 A Sui: T LIGHTIZTG DIJ‘ILIGII FOR 9A2“ Lustre, IIICZE’G :3‘. R 7-3.": m l!) U) A WELL LIGHTED SHALL CITY BUSINESS DISTRICT. (Day time illustration) 104058 #6 TABLE OF CONTEJIS. Page 1. $itle. 2. Fronispiece. 6. Table of contents. 4. Foreword. 5.-7. Purluhe of Strset Libutinb 5-12. Definitions. lé~lb. Claasificationa. 16. Sub-title. 17-15 East Lansing Classifications. . 13-20 Specifications and LOUations. 26-64 Cnoice of Fixtures and hen-on: for Such Choice. 50-67 Power Supply. éb-Qn Primary Circuits. 46-48 Secondary Circuits. 49 lo Ampere Circuits. 50-51 Maintainance. 52-553111 of Iatemal. 06 Note. . FOR: YTOl-C.) :6: In accepting the subject. ”A Street Lighting Design for East Lansing, Michigan" as the topic for my thesis, I had a few very definite roaaona for so doing:- 1. The very apparent need for an improved myo- tem in the city mentioned. 2. my personal interest in the eubieot of Ill- umination in general. and 3. The possibilities of Illumination as a Life York. TEE REFUSE OF STEELT LIGEITIILG. The reasons for the lighting of streets may be enumerated as follows:- 1. IRCTZCTICN CF LIFE AID IfiOEZRTY. I Tests have been conducted that show that modern street lighting is a dot- erent of crime. Increase in the amount of light on a eteeet invariably results in a material reduction of crime.' 2. FACILITATICN OF TRAFFIC. In this age in which we are living - the automobile age-- speed is every- thing. The automobile of today covers as much ground in a hour as a horse and buggy used to cover in a day. It is a foregond conclusion thnt We must provide some means of street lighting in order that we mar perceive objects in time to prevent accidents. Statistics show that the number of-auto- mobile accidents is inversely preportional to the intensity and quality of street lig ting provided 5. CIVIC PRIDE A311) 1“TTELICI'."Y. The average individual is a proud one. He takes a decided interest in anything ( in which he has a part) that is suc- cessful and makes a good impression. "Dark. alnnmv Its-nets: den-Mat a mi lam-1v or unsuccessful town and an indiv- idual does not take pride or interest in such a town. But. a city which pro- vides well lighted streets draws favorable comment from.both the res- ident and the visitor from the neigh- boring towns. Peeple like to visit in well lighted successful apearing. cheerful act- ing towns. They will come to visit- ShOp find sometimes To live in such I a town. 4. All?) TD 1:13 .CZZ.‘\.Z.71‘S. itatistics show that a wool lighted street is a boon to the merchant V1080 stores are located on these strec‘s. - H - . D. all IJTICNS OF T7 "v ’r‘ " ‘- ._ai ti-..) J41) Definitions:- The describing of an Engineering sub- Joct is usually facilitated by the use of engineering and technical terms. These terms. to the layman. are not readily understandable. so for the sake of those laymen that will read this paper. a list of the terms used in this presentation will be included with their definitions. BRIGUTH;SS-~ Degree to which the sur- face is lighted. Unit- Foot Candel. BRIGIE'TZEEZS CCEIT? ST.-- Contrast bet‘.'.'een the brightness of two adjacent sur- faces. CAKOIY-o A cone shaped affair which con- ceals the wiring connectio s of a lamp fixture. Auto-Transformer.--A transformer in w which there is part of the winding which servas for both the primary and secondary circuits. Such a device.. used in street lighting. permits the use of a high current lamp of a low current curcuit. Example. A 20 or 15 ampere lamp on a 6.6 ampere circuit. COTCTA T CULKBKT TRAECFCRK.R.-- A trans- former whos primary winding is connected to a constant volt re circuit and whose secondary Illifi coil sun lies a cons “nt ( ' \ current reg rdless of the load on the circuit. \L‘ Cut-out Hangar -- 3 special hangar for overh ed lights thrt breaks not only ‘ the mech nial but also the electrieal. connections . Thus facilitating theL‘ process of replacing or repairing the lamps or fixtures. UIIiCT VI?ICH.-- Goring hy means of 1 light reflected by the obioct to fine's eye DIST:IBU§ICH CR ILLUXIZATICh CU3VLS ’ Curves showing which.way the light. emited by the lamp. is “irectod by the enclosi g globe or the reflector. These curves may show either the vert- icle or the horizontal distribution. ENCLOLIHG UHIT CR TH; GLCBVom That sturcture which surrounds the laro to form an apparent source of light which is larger than the lamp. H FILM CUT UT--- A “rotective device used in certs circuits accross the lamp term- inals. The action is such that when a lamp is removed or burns out there is a puncturing of a film.which restores the circuit. thus tending to give con- tinuity of service which is very de- sirable. FOCT CAEDLE -- a unti of intensity of illumination. CL$i3.-- A sensation of disco fort resulting from looking at surfaces th t have a high degree of illumin- ation compared to 4’he adJac nt sur- faces. I’L"EIIATICH-~Quanti+y of light fill- ing onasurface. Lumens-- Unti of luminous flux. Is equal to product of hntensity and area. SILK UET do- The seeing of an object by the shutting of of light by the ob- ject which is in the line of sight from the nh3 eye to the lght suorcc. oo;hea erosioexd v---°*n3*” ersr L,.'..l LJli ‘4. .-‘-.L Y'””"r"l '--'Q?. “and .h‘ LIGHT "IG.--- Crnarzmntal high intensity street lighting used in dorm town business Cistricts. G__,.i-.AL C “.1.“ I ICATIC'II‘I} CF STILILT LIG-IITIEI “PITT? ICTS ‘Z'IT IIT:::? :::1rTTI*3~sQr \f (‘I oan . Lo“ . CI r I?" F'T.".”‘.‘ ““2“" C“: *- n- ~ -r_~ ‘&---)' .A.._J-‘ .LUJ“... ’\ . _ . 1—: U . ..‘./. L) in 4- vg ~- 1" s ‘1 ’ LIJ- l C \J S t’ildl {I (is... L act 1 .' 1 ‘~ '| ~ ~-. A to .- \" . LEIGH CITE; the E: {53c u" £13.. 8 0.1.5- ‘CIITJIt III Clums- H) ’ on— er and in their d Hands on a . J.— . .' 4- .. - i. . .__, . 98b lJalefl; s such. High level of illuMInatiofi to :tract the crovds, to Ificrease blSlnCSS, LO prevnnt acoldonts 1n the 030” Cd 8*: Gas and to de- crease crime. r' r\1s-L .‘~ A - ' ..-~ jflie lliuib SHOILU; oe ENDIIJSLIJ_V~ h 1 -g. P .‘d. .,...-. I ‘ - 1 :all on tne SLSLCH sII ace, sine 7' 1'- ~\‘ I“! .h -- mains U.d the qwll Ina iron_s. r‘ls p, ‘ ~ . 1 T . ‘l. -‘l .1. 1115: lurunalIe ._~nould ‘30 etcn has 1— v -’ ~~ « ~ s, 4- . ~ vs .-\ ‘P‘ ‘ . ‘.~‘\ lb .111 greasnt a ple 91 g ~ypeai- - nee bOtL‘Zfilte a”d 337. BOULEVARD?) AII'D THORCFARIJS. Hiyh level of illumination to 3116' for the safe movement of fast and hoary traffic. The light ghould be of pleasing quality. thero should b. no glare, and the light should I). well dif- fused.’ i The light shduld be distributed so that a majority of the light will fall onfitho sidewalks and the road surfaoo RESIDENTIAL DISTRICTS. Liéht‘enoughto decrease the poss- ibilities of crime. to ellow fr w fl havihg about without eye strain, ~' and to-allow“for fairly fast b*t light traffic. The/light should be of pleasing quiity. should bk well diffusel aéd of such n turn that there ‘yill be no glare.’ JThe‘light will be directed to ’the3rdad and side walk surfaces had away from tho porches as much adipéssible. i THE RROYOSZD syswrm 0F STWEBT LIGHTlHG FOR 2 ST LANSING. XICKIGAN. IS CLSSSIFICATICN OF DISTRICTS IN EAST LAEISIIIG, ITICH. CTASS ‘ICA’FTfQIS. BUSI2T4‘LSS DISTRICT Grand River Ave from LZAC to Eve-fe- green Ave. Abbot Road from Grand River Ave to Albert Ave. THOROUG HEAR 'S . Grand River Ave City limit. to\ City 1mm. Iiichigan Ave fo'rm Grand River Ate to City Limits. ' Abbott Road from Grand Eziver m “City Limits. EmA.G. Ave from Grand River Ave té the City Limitn. RESIDL’STIAL DISTRICT. The {88$ of the bity of East Lansing. SPECIFICATIONS AND THE L‘CATICES OF . LIMIIIAIECLS '. nOTEx-Ligate will be placed at natural lace atione whenever poss- ible. 1.0:. at street crossings, bends in the ntreetc, etc} Spaciggs are approxi- mate. qt BUSIII .SS DI“'.§.‘RICT. GEUQ‘TD RIVIR AT'TIZIIE- 1110 Ave to Evergreen Avenue. ReflectanLux Jr. Lantern -Arcadian “A“ Poste- eooo lumen 15 ampere 12mph" Type ILC Constant current trans- farmers in base 6.6 to 15 amperee -- Spacing- 125 feet-~Cnc side of the etreet only ABBOTT ROADéu Grand River Ave to Ablert Ave.-- Same as abate ex- cept that lights will be 0*: both sides of the roadjetaggared. H THC O”GUFATIS. GRTITD HIV 1’; AV? 1W::J:-~:.:P:C Ave to Bogue Street.-- Eichigan Avenue-~ Grand River Avenue to Harriton 4 ad~- .rflccto-Lux Jr. Lant rn-- Arcadian "A" Posts—- 5033 lumen 15 ampere Series type 1amps,-- ILC Co stand Current Transformers in the b se, 6.6/15 amperes.~~ Spacing 2‘0 FoetOne side of the street only. CRAHD RIVER AVTHUB--Bvergrccn to west city limits. Reflecto-lux Jr. Lantern-qArcadian ”C” Posts 4300 lumen 6.6 ampere Series type lamps-- Spacing 200 feet Staggered. ABBOT 30. ~ Grand River'lve to North City Limits. E.A.C. AVE.- Grand Bier Ave to Eorth City Limits. Same as W. Grand River --Except hhat spacing is 225 v~~+. 7‘7. RESIDTHTIAL DI? :ICT. CLASS 1. Saginaw Street Bouncy Road Touraine Avenue Audubon Ave. Greenwood-Road. Carly Ave. Cakvood Drive Wildwood Drive/ Harriason Road-- Grand River North. Highland Ave. West View Ave Oak ledge Ave. Huntington Road. Icnsington Road. On sent wood Road Chesterfield Iarkway I U iversity Drive Shore Dr. Ardson Road Toedlend Drive Harshall Drive Clifton Blvd. Rose Vood Ave. Grand River to Rose wood Street. Center Lan. South Lawn Yarnicon to Rose food Ave. Oekhill Drive Hill Crest Gd River to Cakhill Delta. rich Avenue. Zia‘rison to rest City Limits. Valley Co rt Evergreen Gd. River to Oakhill Beech-Abbott road to EA . Elizabeth Abbott Rd to "AC Linden .. .. .. - Lark Lane. Grove Street Ann Street Albert to Bailey Albert Abbott to Bailey. E Gradd River. Bogue to City limitl. Rtfletto Lux Jr. Lanterns Arcadian 'C' ?ostr 4000 Lumen 6.6 F lam- 30 (“an n‘nrv 'lfifi Ifih .42. RE‘ DEKTILL DICTKICT "2. Dogma St. Cedar St River Street Kilford Reid Gunmen Street Durand Ave. Ks zie Strect Orchard Ave {aslett fitreet Division St. Ann To City Limits Charles Street ' “ "' ” Fern Street Lvergrcen Cakhill to the Limits l-‘orest Ave Funset Lane. {ill Crest ” " " ” Rose bood Street lose Hood Ave. Lesa Tood St North Hill Crest ~Grand River South Harrison Rd ; . " ' Okk Street Harrison Rd East Center Street Deal Louis 18" Radial Bowl Teflcetor with CO Cu. ’ Holplune Skirted Bottom Refractor, su ported ry Cutter Boulevard Type Telescopic Brackets. Hung at appnoximately k“ kt lu'daah about 6' fram the pole Spacing 300 feet on one side of the street. fl! £45005 f“ [‘7] (Xe/c} (f /fl-/ur€s «,5: REFLECTO LUX JR.-LAHTERTS. \ .1 j. Illlliin‘ ME: "/I’ Yfibflfi .. yd; Q I ,1 3/1! / a) 3 C 7’30 I " I J Q h N f ' , «9' 1’ ./ qczr‘ /yg Q. U 0 * a2 f» / <1: Q.) Q. "7;? ’ _, ,/ I /' 164 ’ '1 ,’ .— _ I j A l A Disnummox CURVE or OCTAGONAL REFLECTO-LUX Posr Top 1 mm 600 OF. TYPE C BAND ENAMELED LAMP The appearance of tFeae Pout Tops is pleasing to the eye. both Day and Nita. Those Post Heads are now in use in East Lansing. The initial cost is comparatively low; The distribution of the light is in accordvnee with the general demende.i.e. the perpenderance of the light is directed in a downward direction ant an angle of about fifteen degrees fral the horizontal The Rippled Glass Panels Diffuse the light thus decreasing Glare and making the apparent source of light much lar er than the real source. The Fest lop is applicable to either the éfilfior the 6000 lumen seréeslamp, thus. cone forming to the othcr details of the prepoeed system. ARCAD IAN . A " AR C [1-D I ELI]. H 1ghth to LIYTCCTS fl D Q.— ‘ -.«"“'f.f‘ I‘ ’ e “ ‘i-... - — ' - . LI. light center "A! 15', Heighth to light center "C" 15'. The general "ppear- ance ff these posts is gleaeeing. Tbey are comparatively low in cost. ' Therare fitted with an nponimg in the base to allow for workirg cnthe con- nections and base transformer. Thy an stanfi rd equipment foruae with the Ie?beoto- v Lax Jr. Post Tops. They are now in use n East Lansing 18"RADIAL BOWL REFLECTOR-WITH 8%” SKIRTED REFRACTOR. WLSTINGHOUSE CUTTER MFR. ‘ lS-mcn RADIAL BOWL STREETHOOD Bom' WITH Ski-INCH HOLOPHANE SKIRTED REFRACTOR. TRADE N o. W27113 /0d xflf élufia' f 55:: _H5- 6 gé i ' ' . . “a: w .. «e. « .. Aundéeggge. ,, 60° 4.9” 30‘ m" 0‘ a“ 30° 45‘ 60 )ISTRIBUTION CURVES FOR 600-CANDLEPOWER TYPE C LAMP wnH 18-INCH RAF Bows REFLECTOR" AND A—8}.§-INCH BOWL REFRAgTOR, __‘B_——81/3"71N<;11 fiAtQt...‘ Bo“,\ 8%‘Sk‘Lt‘ Mva¢*bv. The distribution curve shows the main reason why this type of fix- ture was chosen. The lignt is directed at an anble of about lb degrees below the Horizontal. This direction of the light will give good lighting over consider- able spacing instead of in a spot. The agpearunee of tuis tyne of Luminuire is plaesing both day and nits. Tue libnt source (ap- parent) is much larber tuan tue actual light source thus decreas- inb Glare. Tue light is well diffused turn the Refractor. The Initial Cost of this iiiture is nominal. Msintsinance cost is exceedingly low. WESTINGHOUSE-CUTTER---BOULEVAhD TYPE TELESCOPIC BRACKET. A3; , ifime This bracket was decided upon ior followin¢ reasons:- The lamps are held a distance of 5'-7' from the poles.instead of 4' as is the ease with most other brackets. 'This extra distance is utilized is escaping the cutting off of light by the trees that are us- ually located near or adJacent to the lighting fixtures. The appeeianoe of this type of brack- et is very pleasing to the eye. The cost while it is more than is some of the other types of brackets is offset by the first advantage named. 17> REGENT"C' REPEATING FILJ CUTOUT socxm. ‘ NOTE:- These sockets will be used on e. chliuhtinc i‘ixture. both the post type and to brackxt type iix- sures. This repeatiig film cutout socket automatically closes the series circuit by the puncturing of the film whenever the lamp is removed or blown out. The repeatinb fea- ture of the film makes the reelec- inb of the film. with each replace- ment of lamys. unnecessary. The vac-“love -{;£m is merely turnins the iilm about a center so that another Lart of the film is between the talk». geints thru which the puncture takes place unpon the openiub of the circuit. @figflfl#flfl fi’ 17;, Mei-fade i y 7 :1”: { J‘s/#5 : Ii ' : rm, mm! [Mm (in far! Ffuw :.-.'-; ‘ 3 :--.. ." is 'p .Ré’genrt'netm \ ‘ WWW-L PHANTOM VIEW of REGENT “(1" RECEPTACLE wrru v new If? LAMP SOCKET. Ls. POTHEADSs-DISCONNLCTING TYPE. All the best type fixtures will be fited with Potheads in the base of the lamp post. This will allow for the working on the posts with txe current cut off. The Posheads should be of suCh type that disconnecting will automatically short-circuit the circuit accross the lam; thus giving continuity of service which is very important in Street Lighting. THE POWER srsrra.' USED TO SUPPLY THE POWER TO THE LIGHTING UNITS. POWER SUPPLY. The power used on this system will be supplied by the BOARD OF LL30? TRIC LIGHT AND POWER OF LANSING, MICHIGAN. The power will be aupylied thru 2-210v volt mains from the Power Plant of that Board to the two transformer sub-stations used by the City Of East Lansing to sup‘ly their lightin5 needs. These two lines will take diiierent routes so that a damage to one line is not so.likely to mean a damaoe to the other. I These two transiromer sub-stations will be located: ‘ 1. Oh North side of City owned Alley connecting Abbott Raod with MAC Ave. runninb parallel with E. Grand Riyer Avenue and being about 17o feet Noth as said thorouohiare and lacated about 225 feet east of Abbott Road. \\ 2. On City owned brokerty adjacent to the City Pumping Station and Lee- ated Just East of Hillcrest Ave and North of Valley Court. PRIMAhY C IRCUI TS . TYPE RF TRANSFORMER An automatic, station’type, constant'curre'nt transformer for supplying series streetllighting circuits WEST SIDE PRIMARY CIhCUIT. The bower to the West Side Primary Circuit will be euyylied by a: General Electric Co. Novalux Type RF Conetant Current Transformer which furnishes Lower at constant current.of 6.6 apmeres, regardlss of the load on the line. The transiromer will be controlled by a: .General Electric Co Sauter Time Switch. This Time switch automatically oyens or closed the Primary side of the transiormer at bredetermined times. The Transformer is protected from the current surges due to an open on the secondary side of the trans- iormer by: General Electric Co. Series Circuit Protective Device ior Type RF Const- and Current Transformers. This automatically opens the Pri- mary side of the Transformer in case Sauter Time Switch, showing cover lifted and oil tank lowered Horn Gap Lightning Arrester for indoor service 7 _ Series Circuit Protective Device for Novalux Type RO Transformers Pellet Type Lightning Arrester for outdoor installation an ”OPEN" appears in the series Cir- cuit. . The transformer will be protected from Lidhtnina by: Pellet T,pe Iran: Ligfltlflb Arresters on the 2000 volt side. (OUtQOCR) And by : Horn Gap Lightnins Arresters on the Series Circuit side. (indoor) There will be Disconnecting Switches of Disconnecting Pot heads on each line leading to or from the trans- former so that it may be isolated for repairs and replacements. This Primary Circuit will supply pow- er to all the libfltfl West of Abbott Road with the exception of one block on W. }rand River Avenue. The bracket-type lamps will be sup- plied dirsct from this circuit and the post-type lamps thru type 8L Constant Current Transformers. The locations of the bracket-type lamps and the SL Transformers are indicated on the map. The Primary Circuit is also indic- EAST SIDE PHIMAhY CIRCUIT. The power will be supplied by a : General Electric Co. Hovalux Type R0 Consent Current Transformer This will be located on the platform which is located in the alley at the rear of College Hanor. The Circuit will Carry six and six tenths(6.u) anperes consant current. The transformer will be controlled by: General Electric Co. Novalux Series Control. which is in turn controlled by the Sauter Time Switch thru 110 volt Constant Voltage Line. The transformer will be protected from'open' and the Series Circuit by: General Elect. Co. Novalux Series Circuit Protective Device. which automatically opens the supply side of the transformer when open. appears in the constant current side. I}; W. ‘ TYPE RO TRANSFORMERS An automatic outdoor constant’current regulating transformer for supplying series street’lighting circuits. This photo shows transformer removed from its oil tank Lichtning Protection will be supplied by: Pellett Type Lightning Arrester on the 230w volt side of the trans- former and by: Horn Gab Type Lightning.Arrester on the series side of the transformer. both of the Arresters are of the out- door type. This circuit will su‘plu power for all lights on the East Side of town includinu Abbott Road and one block of W.Grand Riv. Ave. Bracket-type lamps will be supplyied direct and the Post-type lamp thru 8L Transformers. Locations of leaps and transformers as well as the course of the primary circuit are indicated on the map. THE SECONDARY CIRCUITS TYPE SL TRANSFORMER This is an oilvfilled pole'type series lighting transformer of one'to’onc ratio for sizes of five, seven and one! ‘ half, and ten kilowatts Type ILC Transformer mounted in the base of an ornamental lighting standard. By removing the plug the lamp is entirely disconnected from the series circuit SECONDARY CIRCUITS. The Secondary Circuits will be supp plied power fiom: Gen. Elect. Co. Novalux 8L Conaant Current Transformers 6.6 ampere: These transformers are located as shown on the map. The circuits are underground Series cables. The cable it laid in impregnated paper conduit which is laid in concrete as a.lerfifi.of'about18' below the our- face and Just inside the line of the curve. These secondary circuits supply power to the Post-type lamp:. The secondary circuit. are traced on the.map. There will be potheano (disconnecting) on all leads to and from the trunn- forlner.o l'oAMPLhE CIRCUITS This type of circuit is found in the Business District and in thorough— farce. The power is supplied by: Gen. Elect. Co. Type ILC Constant Current Transformers. These transformers are placed in the secondary series circuit. They supply power at 15 amps. to the 6000 luhen 15 amp. lamps which are . specified tor these districts. Disconnected potheeds will be supplied on all leads. MAINTAINANCE. MAINTAINANCE. In picking the types oi lumsnaires care was exercised to choose such types that had as low maintainance cost. These Series Type lamps have a life of approximately six months. They should be replaced at this time. This will prevent dark streets which result from burned out lamps. Exceedinb care should be exercised in the installation of the equip- ment-- especially the underground cable.-- so that the maintainancercwir of the power circuits will be kept at a minimnn. Lumenaires should be cleaned at least twice a year for the follow- ing reasons: 1. appearance. 2. dirty lamps absorb liaht thus cut- ting down the efficiency of the lamp. BILL OF MATERI ALS . BILL OF JATERIAL .General Electric Co. Novalux. Constant Current Transformer. Type RF. 2500 volt no cycle. 6.6‘ampere secondary. bOkW. - ------- 1. General Electric Co. NOYalul. Type R0 2600 volt 60 cycle. Constant Current Transfromer. 6.6 Ampere Secondary. so. kw. ------ 1. General Electric Co. Novtlux Type SL. 6.6/6.6 eupere Constant Current Transformer. 5 kw. ....... A6 General Electric Co. Noralux. Constant current Transformers. TypeLLC 6.6-15 amp. - ....... 34. Gen. Elnc Co. Horn Gap Lightning Arresters. 10000 volt 60 cycle. Gen. Elec. Co Pellett Type Lightning Arresters. x300 vn1t an nun1a. 2i General Electric Company Series Protective Devices ior Typr RF Constant Current Traneiorners. 25cc volt~~6.o hub. 60 c,cle. ---1. General Electric Company Series Protective Device ior Type 50 Constant Current Trans. 2600 Volt -o.c ampere DO cycle.--l. General Electric Conpany Sauter Time Switch. kJOO volt 00 cycle, ........ 1, General Electric Co. Novalux. Series Contrcll Switcn. Eéww volt 110 volt control.-----l. General Electric Conpany'Novalux Protective Devrces for Type SL Conetant Current Transformers. --/6. General Electric Company Novalux. Disconnecting Pot Heads. 3500 volt 60 cycle. -----12. 7000 volt 60 cycle -----52. 1100 volt 60 agele ----- Z? . ‘~/\ I“ Westinghouse Elec. and it“. Go. Cutter T,po ' Octagonhl- Reflecto Lux Jr. Lanterns. with Stippled Glens Fanels- Parabolc Reflectorn- titted witn Bebent “C“ repeatinb iilm sockets. 0.6 amp .‘ Series Sockets. ----/15’ Same with lo any repeatinb Film Series Sockets. ----31. Weetinbnouee- Cutter Company. Arcadian '0' Cast Iron Lamp Poets. .. mugs: Westinbnouoe-Cutter Co. Arcadian "A“ Cast Iron Lamp Posts. ---+34. Westincnouse-Cuttei‘ Company . lb"Raaial Bowl Reflector witn cg" Holplane Skirted Reiractor. ---- 74, Westinghouse-Cutter Company. Boulevarn Telescopic Bracktea. --- 71¢, NOTE; I have ommtted anyconeiueration of cost except conyarative costs for tne followinu reasonS' ‘ l. labor coats very and are not readily available. 2. material costs vary considerably. I have not coneinered the present circuite no I was unable to trace them or to find anyone wlo were fairly certain of their courses. Hy nesibn is based on: Inc eiiectiveness of tue lighting, tne appearance enu comparative costs. WM Robert H.Wny. / I / i l I h (vi/Cu 3 rot ktf lam,» Latin“) 1’8 "’ f0, bur 1/000 Lumen 7%54 (“hf RF,— Irons 404d [auto .11.. 750:5. (goo chofldl/y (IV-CU A ‘_""""'_'—“— fl/Imd’] O fc’f.’ ED, 0®£ nfinij’M(/ . . i! JIC a”‘”'1 8 R0 ‘1‘“'-"—_ ”mt" ._ ’ . _' , (I / ’lr/ONS A? .45” W ‘8 I .‘ m I14 In [4! MI. 4 Mo I Y “.1 .JauL. .. (If I“! 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